Which heads?
They have a flow chart for the heads on their site. I'm sure that they are the best flowing heads on the market. It's not all about the .600 lift numbers what is actually more important is the .3-.4 numbers which the valve spends more time at.
PS I have a set of the 225's right now on my shelf.




thats what ive been hearin too! Arent they getting them to flow around 340cfm on the intake at .600 lift?